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An urn contains 8 red, 9 white, and 2 black balls. One ball is drawn from the urn, it is replaced, and a second ball is drawn. Construct a probability tree to determine the probability that at least one ball drawn is black B.
World Trade
The exchange of goods and services across international borders, encompassing the import and export transactions between countries.
Agricultural Products
Products obtained from agriculture and farming, such as animals, crops, and other unprocessed materials.
Political Logrolling
A practice in politics where two or more members agree to vote for each other's proposed bills or policies, often regardless of their individual merits, to achieve their respective objectives.
U.S. Senate
One of the two chambers of the United States Congress, responsible for making and passing federal laws.
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